John Carlo Mastrangelo

John Carlo Mastrangelo


Lax O'Sullivan Lisus Gottlieb LLP

Recognized since 2024

Toronto, Ontario

Practice Areas

Administrative and Public Law

Corporate and Commercial Litigation

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John Carlo carries a broad litigation practice with particular interests in corporate-commercial litigation and regulatory/public law. He has played pivotal roles in numerous significant litigation matters including a precedent-setting CRTC appeal, a First Nations historic Treaty claim and the largest contested merger in Canadian history.

He has also served as counsel to clients across multiple industries including telecommunications, energy and real estate. John Carlo has appeared at all levels of court in Ontario, before the national Competition Tribunal and the Supreme Court of Canada.

Contact & Links
Location
  • 145 King Street West, Suite 2750
    Toronto, ON M5H 1J8
    Canada
Education
  • Osgoode Hall Law School, York University, J.D., graduated 2017
Bar Admissions
  • Ontario, 2018

Recognized in Best Lawyers: Ones to Watch in Canada 2026 for work in:
  • Administrative and Public Law
  • Corporate and Commercial Litigation

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